Specific embodiment
Claim according to the present invention and specification disclosure of that, technical solution of the present invention literary institute specific as followsIt states.
Shown in FIG. 1 is a preferred embodiment of the packing case that the present invention has air buffer.The present invention has skyThe packing case of gas buffer unit includes an air buffer 10 and a protective shell 30, and the air buffer 10 is installed inThe protective shell 30, to provide buffer function, so that article to be packaged be effectively prevent to be collided and damage deformation.
As shown in Figures 1 to 9, the air buffer 10 further comprises at least inflatable bodies 11 and at leastOne charge valve 20, the charge valve 20 into the inflatable bodies 11 for inflating.The inflatable bodies 11 are used for instituteIt states article to be packaged and air cushion effect is provided.The inflatable bodies 11 include an at least inflation unit 111, wherein described fillGas unit 111 includes one first gas chamber layer 1111 and one second gas chamber layer 1112, overlapped to form an inflatable chamber 112 simultaneouslyAn at least inflating port 113 is formed, the inflating port 113 is connected for filling to the inflatable chamber 112 with the inflatable chamber 112Gas, as shown in the figure, two or more inflation units 11 are arranged side by side to form the inflatable bodies 11, wherein the inflationValve 20 is set to each inflation unit 111.In other words, each inflation unit 111 can be inflated independently, in adjacent two instituteIt states and forms an extension connecting sewing 103 between inflation unit 11, thus can be by the inflatable chamber 112 by these connecting sewings 103It is divided into multiple individual inflatable chambers 112, these connecting sewings 103 can be formed by hot sealing process.It is single in an inflation in this wayMember 111 is damaged when gas leakage, and other inflation units 111 can be unaffected.It is noted that the inflation unit111 can also interconnect, and only need a charge valve 20 in this way, so that it may the inflation of inflation unit 111 described in Zhi Suoyou.AlsoIt is to say, the air buffer 10 can be formed more by the heat-sealing of the first gas chamber layer 101 and the second gas chamber layer 102A inflation unit 111.
In addition, because the shape per the inflation unit 111 can change after inflation, thus the inflatable bodies 11Various shape and size can be made.As shown in Fig. 2, in the preferred embodiment, the inflatable bodies 10 can also be formedOne gas fill port 114, the gas fill port 114 are connected with the inflating port 113, and pass through one or more inflationsValve 20 is connected with each inflation unit 11, and in this way when inflating from the inflating port 113, it is logical that air can enter the inflationRoad 114, then air is guided into corresponding each charge valve 20 by the gas fill port 114, so that air enters back intoInto each inflation unit 111.That is, the gas fill port 114 is an air distribution channel, it will be from inflating portThe air being filled in 113 is assigned to each inflation unit 111.Air inflation nozzle can be set at inflating port 13, to be connected toOne charger such as inflator pump, to fill air for the air buffer 10.
As shown in Fig. 2, inflation unit 111 of the inflatable bodies 11 is respectively provided with multiple partitioning slots 104,Each inflation unit 111 is set to be further formed multiple corresponding sub- inflation units 1111 in this way.It is noted that theseThe position of the partitioning slot 104 of the inflation unit 111 is corresponding, that is to say, that the inflatable bodies 11 have multiple row mutualThe partitioning slot 104 being arranged at intervals, is arranged in the partitioning slots 104 of multiple inflation units 11 along arranged in a straight line,But it is not connection, so that one side wall is formed between the adjacent two column partitioning slot 104, so that the air cushion be made to fillBagging forms multiple side walls, these side walls surround out an accommodating chamber, for accommodating the article to be packaged.
The quantity of the partitioning slot 104 of each inflation unit 111 can according to need setting, that is to say, that instituteThe columns variation for stating partitioning slot 104 described in the multiple row of inflatable bodies 11, so that the corresponding inflatable bodies 11 can haveThere are 3,4 or multiple side walls.As shown in Figures 2 and 3, the air buffer could be formed with the peripheral wall of bottom wall, surrounding, andRoof.It is noted that these partitioning slots can be formed by hot sealing process.It, can according to the number situation of the side wall of formationSo that the accommodating chamber forms various accommodation spaces.
In addition, these partitioning slots 104 do not separate the adjacent son sufficiently unit 1111, that is to say, that adjacentAn at least communicating passage 112 is formed between the sub- inflation unit 1111, so that air is logical by these connections in inflationRoad 112 enters each sub- inflation unit 1111.In example shown in the figure, the adjacent sub- inflation unit 1111 itBetween centre be provided with heat-sealing formed the partitioning slot 104,104 two sides of partitioning slot are formed with the communicating passage112。
In addition, can have one or more charge valves 20 in each inflation unit 11, so as to form major diameterGas chamber and minor diameter gas chamber.It is noted that the major diameter gas chamber and minor diameter gas chamber can be alternately distributed, thus in tableFace forms wavelike structure, to enhance buffering effect.
As shown in Figures 2 to 6, the protective shell 30 further comprises side shell wall 31.10 quilt of air bufferIt is installed on 31 inside of side shell wall.As shown in Figure 3, it is worth mentioning at this point that the side shell wall 31 is foldable, so that describedProtective shell 30 is foldable.When the inflation of the inflation main body 11 of the air buffer 10, air is from the inflating port113 enter the gas fill port 114.Then air is guided into corresponding each lower charge valve by the gas fill port 11420, so that air enters back into each inflation unit 111.That is, by being filled described in the inflating port 113 entranceThe air of gas access 114 is assigned to each inflation unit 11 by the gas fill port 114.Enter in air each describedAfter inflation unit 111, each inflation unit 11 is started to spread out.More specifically, the sub- inflation of the inflation unit 111Unit 1111 is unfolded first.After all sub- inflation units 1111 complete expansion, the entire inflation unit 111 completes expansion.After all inflation units 111 complete expansion, these described inflation units 111 of the inflation main body 11 surround out an appearanceChamber is received, for accommodating the article to be packaged.During air buffer inflation, the first gas chamber layerThe distance between 101 and the second gas chamber layer 102 gradually increase.Meanwhile suffered by the first gas chamber layer 101 and described 102To pressure also gradually increase.The inflation unit 111 of the inflation main body is gradually spread out, thus the air bufferThe 10 inflation main body 11 is also gradually spread out.The pressure protective shell 30 described greatly caused by being unfolded when the inflation main body 11The side shell wall 31 maintain its folded state suffered by power when, the side shell wall 31 starts to spread out.When the air cushionWhen the inflation main body 11 of device 10 completes expansion, the side shell wall 31 also completes expansion, and the side shell wall 31 surrounds outOne receiving channel, for accommodating the air buffer 10.The inflation main body 11 of the air buffer 10 simultaneouslyThe side shell wall 31 is greater than to the pressure that the side shell wall 31 of the protective shell 30 applies after expansion and maintains its folded statePower, to maintain the side shell wall 31 to be in unfolded state.It is noted that when the protective shell 30 is in folded state, instituteIt states air buffer 10 and is also at folded state, so that there is the present invention packing case of air buffer to be not usedVolume before is reduced, in favor of storing and transporting, to reduce storage and transportation cost.
It is noted that the side shell wall 31 further comprises one group of sub- side shell wall 311, each sub- side shell wall 311 is distinguishedThe sub- inflation unit 1111 of the corresponding inflation unit 111, to be formed by sub- inflation according to the inflation unit 111The number situation of unit 1111, can make the accommodating chamber form various accommodation spaces, can also make the side shellWall 31 forms different shapes by the different location of the sub- side shell wall 311.That is, the inflatable bodies 11 haveSide wall it is corresponding with the sub- side shell wall 311 respectively, according to the number of side walls that inflatable bodies 11 have, the side can be madeShell wall 31 forms different shapes by the sub- side shell wall 311.
The protective shell 30 further comprises a bottom case wall 32, and the edge of the bottom case wall 32 and the side shell wall 31 connectIt connects, for forming a positive stop end of the receiving channel in the side shell wall 31 expansion, to limit the air cushion dressSet 10 position.The bottom case wall 32 also provides support the air buffer 10.In the preferred embodiment, the bottom caseWall 32 further comprises a convex hull wall 321 and a recessed shell wall 322, the convex hull wall 321 and the recessed shell wall 322 respectively with faceThe sub- side shell wall 311 of the two of opposite connects, and can rotate towards each other.The convex hull wall 321 further comprises a protrusion 3211 and oneInterconnecting piece 3212, the interconnecting piece 3212 are connect with the sub- side shell wall 311 and the protrusion 3211 respectively.The one recessed shellWall 322 has a notch 3221 and two detent portions 3222, and the detent portion 3222 is located at 3221 two sides of notch.It is describedThe corresponding protrusion 3211 of notch 3221, so that protrusion 3211 is embedded in the notch 3221, so that the detent portion 3222Buckle the interconnecting piece 3212.A buckle structure is formed, in such a manner to limit and support the air buffer10.Preferably, the bottom of the bottom of the notch 3211 and the protrusion 3211 is incorporated into adjacent sub- side shell wall 311At axis, with enhancing limit and support effect.The bottom case wall 32 further comprises a both wings shell wall 323, two wing shell walls323 are respectively arranged on the aspectant two sub- side shell walls 311 adjacent with the protrusion 3211.The wing shell wall 323 further wrapsA limiting section 3231 is included, for limiting the position of the convex hull wall 3211, to increase the stability of formed buckle structure.It is formedWhen the buckle structure, the recessed shell wall 322 is rotated first to the position parallel with the feather edge of the side shell wall, is then distinguishedTwo wing shell walls 323 are rotated, so that two wing shell walls 323 contact the recessed shell wall 322.Then the recessed shell wall 322Direction rotates the convex hull wall 321, until the protrusion 3211 of the convex hull wall 321 is embedded in the described of the recessed shell wall 322Notch 3221, so that the convex hull wall 321 is limited, to form the bottom case wall 32 for limiting and supporting the air cushionDevice 10.
The protective shell 30 further comprises a top shell wall 33, and the top shell wall 33 is located at the top of the side shell wall 31Edge, for covering the receiving channel of the surrounded formation of side shell wall.The top shell wall 33 can be to the bottom case wall 32Direction rotation.The top shell wall 33 further comprises a top 331, and the top can be rotated, for covering institute when institute's top shell wallWhen stating receiving channel, it is embedded in the receiving channel, and is contacted with the side shell wall 31 to generate a pressure and prevent the top shell wallIt is rotated up.The protective shell 30 further comprises two limit shell walls 34, and the adjacent two sides of the top shell wall 33 are respectively set, pointIt is not connected with corresponding two sub- side shell wall 311.The two limit shell walls 34 can be rotated to the receiving channel.When the top shellWhen wall 33 covers the receiving channel, first to the receiving channel rotate the two limit shell walls 34 to the side shell wall 31Then the parallel position in top edge rotates the top shell wall 33 to the receiving channel, and the top 331 is made to be embedded in instituteReceiving channel is stated to contact with the side shell wall 31.The two limit shell walls 34 limit the top shell wall to be continued to the receiving channelRotation, to protect the air buffer 10.
It is noted that folding self-styled bottom structure can also be used in the bottom case wall 32.Using self-styled bottom structureBottom case wall is unfolded when being unfolded with the side shell wall in the side shell wall 31 expansion.When the side shell wall 31 is completed to be unfoldedWhen, the bottom case wall of the self-styled bottom structure is also completed to be unfolded, for limiting the air buffer 10 and support instituteState air buffer 10.
In a preferred embodiment, the uninflated air buffer 10 is fixed in the side shell wallA 31 wherein sub- side shell wall 311.Specifically, the inflatable bodies 11 of the uninflated air buffer 10Possessed wherein one side wall is fixed in a wherein sub- side shell wall 311 for the side shell wall 31.That is, arranged side by side fillsIf a wherein sub- inflation unit 1111 arranged side by side for gas unit 111 is fixed in a sub- side shell wall 311 of the side shell wall 31.It is excellentSelection of land, the width of the sub- side shell wall and the equivalent width of the sub- inflation unit.The fixation air buffer 10The sub- side shell wall 311 be preferably the sub- side shell wall 311 that is connect with the top shell wall 33.It can will be with the sub- side shell wallInstitute is fixed in the outer surface of one of them sub- inflation unit 1111 of one column of the 311 contacts sub- inflation unit 1111 arranged side by sideState sub- side shell wall 311.It can also be fixed by wherein several sub- inflation units 1111 of the sub- inflation unit 1111 arranged side by sideIn the sub- side shell wall 311.The sub- inflation unit 1111 of permutation can also be fixed on to the sub- side shell wall 111.Preferably, willThe sub- inflation unit 1111 is bonded to the sub- side shell wall 311.
When the air buffer 10 is inflated, if the sub- inflation unit 1111 of only one column and the sub- side shell wall311 connections, then be unfolded centered on the sub- side shell wall 311 connecting with the sub- inflation unit 1111.When the skyWhen the inflation main body 11 inflation of gas buffer unit 10, air enters the gas fill port 114 from the inflating port 113.SoAir is guided into corresponding each lower charge valve 20 by the gas fill port 114 afterwards, thus air enter back into it is each describedIn inflation unit 111.That is, entering the air of the gas fill port 114 by the inflating port 113, by the inflationAccess 114 is assigned to each inflation unit 11.After air enters each inflation unit 111, each inflationUnit 11 starts to spread out.More specifically, the sub- inflation unit 1111 of the inflation unit 111 is unfolded first.It is worth noting, when expansion is unfolded centered on the sub- inflation unit 1111 connecting with the sub- side shell wall 311.It is described to fillGas main body 11 applies pressure to sub- side shell wall 311 respectively during expansion, to described, to push the sub- side shell wall 311Expansion, so that the side shell wall 31 is unfolded outward, to form the receiving channel for accommodating the air buffer 10.In 31 expansion outward of side shell wall, also the bottom case wall 32 with self-styled bottom structure is driven to be unfolded.When the sideWhen the expansion of shell wall 31 finishes, the bottom case wall 32 is also unfolded to finish, for limiting and supporting the air buffer 10.Work as instituteAfter having sub- inflation unit 1111 to complete expansion, the entire inflation unit 111 completes expansion.When all inflation units 111After completing expansion, these described inflation units 111 of the inflation main body 11 surround out an accommodating chamber, with for accommodate it is described toPacking article.During air buffer inflation, the first gas chamber layer 101 and the second gas chamber layer 102The distance between gradually increase.Meanwhile pressure suffered by the first gas chamber layer 101 and described 102 also gradually increases.It is describedThe inflation unit 111 of inflation main body is gradually spread out, to drive the inflation main body 11 of the air buffer 10Also it gradually spreads out.The side shell wall 31 of the pressure protective shell 30 described greatly caused by being unfolded when the inflation main body 11 maintains itWhen power suffered by folded state, the inflation main body pushes the side shell wall 31 to start to spread out, and supports the side shell wall 31.When the inflation main body 11 of the air buffer 10 completes expansion, the side shell wall 31 also completes expansion.
In a preferred embodiment, when the side shell wall 31 is pushed, the sub- side shell of the side shell wall 31Two adjacent sub- side shell walls 311 of wall 311 are rotated to same direction, to strut the side shell wall 31, so that the side shell wall31 around forming the accommodating chamber.
It is noted that each side wall of the inflation main body 11 can be fixed described in the corresponding side shell wall 31Sub- side shell wall 311.For the one or more air buffers 10 of setting in the protective shell 30.The air buffer 10For the one or more inflation main bodys 11 of setting.
It is noted that multiple inflation main bodys 11 can be separately positioned on to the side of the protective shell 30The inside of wall 31, the bottom wall 32 and the roof 33 with self-styled bottom structure, for after the protective shell is softened,The accommodating chamber is formed by multiple inflation main bodys 11.
As shown in Figure 10, the charge valve 20 is check valve comprising two sealing films 21 and 22, the fixation to overlap each otherBetween the 2 air chambers layer 101 and 102, to form four-layer structure, one is formed between the two sealings film 21 and 22 and is filledGas channel 24.Correspondingly, after the airbag 10 is inflated, the two sealings film 21,22 is bonded together with by the airbag instituteFilling channel sealing is stated, includes more in the airbag 10 to air is sealed in the inflatable chamber 112 of the airbag 10When a inflation unit 111, multiple charge valves 20 are arranged in correspondence in each inflation unit 111 respectively to seal airIn each inflation unit 111.Particularly, the first sealing film 21 is overlappingly bonded in the first gas chamber layer 101, describedSecond sealing film 22 is overlappingly bonded in the second gas chamber layer 102.When being inflated to the air buffer 10, air quiltIt is guided into the filling channel 24 formed between the first sealing film 21 and the second sealing film 22.When the airbagAfter gas, the first sealing film 21 and the second sealing film 22 inflation bonded to each other to seal the airbagChannel 24.In addition, the gas pressure in the airbag seals film 21 and 22 in described two, to guarantee the two sealings film 21It holds tightly together with 22, to prevent air from leaking out from the air valve 20.That is, the air valve is one unidirectionalValve only allows gas into the air buffer 10 and prevents gas reverse osmosis from going out.
Resistance can be arranged between the two sealings film 21 and 22 in the formation of the filling channel 24 of the charge valve 20It is realized every device, when sealing the two sealing film 21 and 22 and the 2 air chambers layer 101 and 102, because of the barrierThe setting of device, it is described two sealing film 21 and 22 will not complete heat-sealing, to form the filling channel 24.At oneIn specific example, the baffling device can be ink resistant to high temperature.
It is the air buffer of another embodiment according to the present invention as shown in Figure 11 to Figure 13 B, it is mainThe structure of another charge valve 20A is illustrated, the charge valve 20A is double check valve (DCV), dual close to provide to the airbagSeal effect.Wherein the charge valve 20A includes one first sealing film 21A, and one second sealing film 22A and a non-return seal film 23A.
The first sealing film 21A and the second sealing film 22A overlap described the first of the inflation unit 111ABetween gas chamber layer 101A and the second gas chamber layer 102A.The first sealing film 21A and the second sealing film 22A is phaseThe two thin layer flexible membranes being made of plastics mutually being overlapped.Preferably, the first sealing film 21A and the second sealing film 22AFor identical two membranes.
Per the first sealing film 21A and the second sealing film 22A has a proximal edge, and it is single to extend the inflationThe entrance and a distal edge of the charge valve 20A of first 111A, extends to inside the inflation unit.Preferably, describedRespectively adjoin on the boundary of the proximal edge and distal edge of one sealing film 21A and the second sealing film 22A.
In the present embodiment, the proximal edge of the first sealing film 21A and the first gas chamber layer 101A are bonding.InstituteProximal edge and the second gas chamber layer 102A for stating the second sealing film 22A are bonding.
The non-return sealing film 23A is overlapped in the proximal end of the first sealing film 21A and the second sealing film 22A, withA filling channel 24A is formed between the first sealing film 21A and non-return sealing film 23A, and is sealed in the non-returnA non-return passage 25A is formed between film 23A and the second sealing film 22A.
The filling channel 24A is aligned to for being filled with air to the inflatable chamber 112A to fill the inflation unit111A, until making the first sealing film 21A's and the second sealing film 22A by the air pressure in the inflatable chamber 112ADistal end is overlapped and is sealed to close the filling channel 24A.According to this preferred embodiment, when having gas from the first sealing filmWhen having air leakage between 21A and the distal end of the second sealing film 22A, as illustrated in figures 13 a and 13b, 12 in the inflatable chamberAir be directed into the non-return passage 25A, to generate supplement air pressure, to further seal the filling channel 24A,To compensate the deficiency of the sealing effect of the first sealing film 21A and the second sealing film 22A.
The filling channel 24A have two open ends, one of them nearly open end be formed in it is described first sealing film 21A andThe proximal edge of the non-return sealing film 23A.One of in addition remote open end extends to the first sealing film 21A and described second closeThe distal edge of sealer 22A, to be connected with the inflatable chamber 112A.Compressed air can be guided by the filling channel 24AInto the inflatable chamber 112A.
It is noted that after the inflation unit 111A is full of air, air pressure in the inflatable chamber 112A is to instituteIt states the first sealing film 21A and the second sealing film 22A applies pressure, to seal the first sealing film 21A and described theTwo sealing film 22A distal edges, and seal the remote open end of the filling channel 24A.In addition, it is described first sealing film 21A andThe distal end of the second sealing film 22A is sealed because of surface tension.
The non-return sealing film 23A is the thin layer flexible membrane made of plastics.Preferably, the non-return seals film 23A, instituteStating the first sealing film 21A and the second sealing film 22A is polyethylene (PE) film.In addition, per the first gas chamber layer 101A andThe thickness of the second gas chamber layer 102A is greater than per the first sealing film 21A, and the second sealing film 22A and the non-return are closeThe thickness of sealer 23A.
Preferred embodiment in accordance with the present invention, the length of the non-return sealing film 23A are less than per the first sealing film 21AWith the length of the second sealing film 22A, film 21A and institute are sealed to work as non-return sealing film 23A and be overlapped in described firstWhen stating the proximal end of the second sealing film 22A, the distal end of the first sealing film 21A and the second sealing film 22A overlap.It is noted that the length of non-return sealing film 23A be defined as the non-return sealing film 23A proximal edge and distal edge itBetween distance.Per the first sealing film 21A and the length of the second sealing film 22A is defined as the first sealing film 21AThe distance between the proximal edge of the second sealing film 22A and distal edge.
Correspondingly, the proximal edge and the non-return of the first sealing film 21A and the second sealing film 22A seal filmAdjoin at the proximal edge of 23A.In addition, the proximal edge phase of the proximal edge of the non-return sealing film 23A and the second sealing film 22ABonding.
The non-return passage 25A is formed between the non-return sealing film 23A and the second sealing film 22A, wherein instituteState non-return passage 25A with an open end towards the inflatable chamber 112A and a closed end to valve openings.In other words, instituteThe proximal end for stating non-return passage 25A is the closed end and the distal end of the non-return passage 25A is the open end.
Correspondingly, when air is when the open end is filled with the non-return passage 25A, the non-return passage 25A is filled with skyGas is to generate supplement air pressure, to further seal described between the first sealing film 21A and the second sealing film 22AFilling channel 24A.
It is noted that when being inflated by the filling channel 24A to the inflatable chamber 112A, the filling channelAir flow direction in 24A is opposite with the air of non-return passage 25A flow direction.Therefore, air will not be filled with the non-return passage25A.When air reveals back the non-return passage 25A from the inflatable chamber 112A, air enters the non-return passage 25A to produceRaw supplement air pressure further seals the filling channel 24A, to prevent gas leakage.It is noted that leakage air fromBefore the nearly open end leakage of the filling channel 24A, the non-return passage can be flowed to from the remote open end of the filling channel 24AThe remote open end of 25A, so that air be avoided to reveal.In addition, the non-return sealing film 23A and first sealing film 21A due toSurface tension is sealed to seal the filling channel 24A.
In order to form the charge valve 20A in the inflation unit 111A, the charge valve 20A further includes one first sealingJoint 201 is to seal film for the first gas chamber layer 101A and described first at the valve openings of the inflation unit 111A21A be bonded together and one second sealing engagement at 202 at the valve openings of the inflation unit 111A by describedTwo gas chamber layer 102A, the non-return sealing film 23A and the second sealing film 22A are bonded together.
Correspondingly, the proximal edge of the first sealing film 21A passes through at first sealing engagement 201 and described firstGas chamber layer 101A bonding.The proximal edge of the second gas chamber layer 102A and the second sealing film 22A, the non-return seal filmThe proximal edge of 23A is bonded together by 202A at second sealing engagement.Preferably, two apart from one another by sealing engagement at201A be used to will the first gas chamber layer 101A and it is described first sealing film 21A bonding, two apart from one another by second sealing engagementLocate 202A to be used to the second gas chamber layer 102A, the non-return sealing film 23A and the second sealing film 22A.It is worth mentioning, 202A can be hot-sealing line at 201A and second sealing engagement at first sealing engagement, be also possible to otherFor example crescent shaped heat-sealing of shape.In other words, the proximal edge of the first sealing film 21A and the first gas chamber layer 101A are logicalCross 201A heat-sealing at the sealing engagement.The proximal edge of the second gas chamber layer 102A and the second sealing film 22A,Pass through 202A heat-sealing at second sealing engagement with the proximal edge of non-return sealing film 22.
After being maintained at the heat seal process, deposited between the first sealing film 21A and non-return sealing film 23AThere is space, the charge valve 20A further includes one first heat-resisting object 26A, is formed in the first sealing film 21A and the non-returnGuarantee the formation of the filling channel 24A between sealing film 23A.The first heat-resisting object 26A is described first close for preventingSealer 21A and non-return sealing film 23A are pasted together completely after the heat seal process.
Specifically, the described first heat-resisting object 26A is arranged in the first sealing film 21A's and non-return sealing film 23ANear side (ns) edge is simultaneously located at the valve openings of the inflation unit 111A, to guarantee the proximal end of the filling channel 24AIt is in the open state.
Likewise, the second sealing film 22A and the non-return seal film 23A after in order to be maintained at the heat seal processBetween have space, the charge valve 20A further includes one second heat-resisting object 27A, is formed in the second sealing film 22A and instituteState the formation for guaranteeing the non-return passage 25A between non-return sealing film 23A.
Specifically, the described second heat-resisting object 27A is arranged in the second sealing film 22A's and non-return sealing film 23ADistal edge edge, to guarantee that the distal end of the non-return passage 25A is in the open state.It is noted that the non-returnIt is closed by second sealing engagement 202 the proximal end of channel 25A.
According to this preferred embodiment, the first heat-resisting object 26A and the second heat-resisting object 27A are two refractory layers, are appliedThe predetermined position on corresponding film is overlayed on, to prevent the film during pad seals to be pasted together.Described first is heat-resistingObject 26A extends the non-return sealing proximal end film 23A side, and seals film 21A towards described first.The second heat-resisting objectThe distal end that 27A extends the non-return sealing film 23A is located at opposite side, and seals film 22A towards described second, wherein instituteState the opposite side that the second heat-resisting object 27A is not located at the proximal end of the non-return sealing film 23A, the non-return passage described in this wayThe proximal end of 25A can be closed by 202A at second sealing engagement.It is noted that the second heat-resisting object 27ANot only avoid non-return sealing film 23A with state the second sealing film 22A and be bonded together, to guarantee the non-return passage 25AThe distal end it is in the open state, and reinforce the work between non-return sealing film 23A and the first sealing film 21AWith thus due to surface tension to close the filling channel 24A.
The charge valve 20A further includes two sides to 203A at sealing engagement, sentences and will bond for two thirds sealing engagementThe first sealing film 21A and the non-return seal film 23A, to form the side wall of the filling channel 24A.The inflation is logicalThe width of road 24A is defined from two side to 203A at sealing engagement.Specifically, two side is to 203A at sealing engagementTwo inclination hot-sealing lines, so that the width of the filling channel 24A successively decreases from each inflatable chamber of the valve openings.In other wordsIt says, for a biggish open end, it is connected with the valve openings for the nearly open end of the filling channel 24A, and the inflationThe remote open end of channel 24A is a cone-shaped open end and is connected to the inflatable chamber 112A.The filling channel 24A of the taper intoOne step avoids air from being leaked to the valve openings from the inflatable chamber 112A.
Preferably, the lateral seal joint 203A is from the first sealing film 21A's and the second sealing film 22AProximal edge extends to its distal edge.Therefore, the lateral seal joint 203A is located at the first sealing film 21A and described theTwo sealing film 22A proximal parts are bonded together with non-return sealing film 23A.The lateral seal joint 203A is located atThe first sealing film 21A and the second sealing film 22A distal portions and the first sealing film 21A and second sealingFilm 22A is bonded together.
Correspondingly, in order to inflate to the inflation unit 111A, the pin of pump is inserted into the inflating port 13A will pressContracting air is filled with the filling channel 24A, and wherein the inflation direction of air is to reach from the nearly open end of the filling channel 24ARemote open end.The inflation unit 111A described in this way starts to inflate.The air pressure of the inflatable chamber 112A increases to strut described theOne gas chamber layer 101A and the second gas chamber layer 102A.Meanwhile gas pressure is in the first sealing film 21A and described second closeSealer 22A is particularly acting on the distal end of the first sealing film 21A and the second sealing film 22A.When the inflation unitAfter 111A is filled up completely air, i.e., after arrival maximum loading, the air pressure in the inflatable chamber 112A reaches enough to sealThe distal end of the first sealing film 21A and the second sealing film 22A are stated, described with filling channel 24A described in automatic-sealed far opensPut end.At this moment the pin pumped detaches the inflating port 13A.
It is described when together with the first sealing film 21A not sealed completely with the distal end of the second sealing film 22AThe air of inflatable chamber 112A may be leaked to the filling channel 24A.In order to avoid air is leaked to the filling channel24A, the non-return sealing film 23A are with the first sealing film 21A sealing with the remote open end of the filling channel 24A is closeEnvelope.Specifically, the airintake direction of the non-return passage 25A is contrary with the inflation of the filling channel 24A.In addition, working as instituteWhen stating the open end opening of non-return passage 25A, the remote open end of the filling channel 24A is closed.Therefore, air fromThe open end of the non-return passage 25A enters and is retained in the non-return passage 25A.
The non-return passage 25A is filled by air, and supplement air pressure is generated in the non-return passage 25A described in this way with further closeSeal the filling channel 24A.Particularly, the inflation between the first sealing film 21A and non-return sealing film 23A is logicalThe remote open end of road 24A is sealed.More specifically, the supplement air pressure in the non-return passage 25A is higher, the non-return is closeThe sealing effect of sealer 23A is better.In other words, when air is revealed from the inflatable chamber 112A to reduce the inflatable chamber 112AAir pressure when, air enters the non-return passage 25A to improve the air pressure of the non-return passage 25A.Therefore, the inflation is pressedThe sum of the air pressure of total gas pressure, i.e., the described inflatable chamber 112A and the non-return passage 25A remains unchanged.In this way, from the inflatable chamberThe air of 112A into the non-return passage 25A can enter the sealing effect for reinforcing the filling channel 24A.
The present invention further provides a kind of methods used and pack case packing object to be packaged, and the packing case includes a protectionShell and an air buffer, comprising the following steps:
A) air buffer is inflated, so that the air buffer expands, at least one is formed and accommodatesChamber is for receiving object to be packaged；With
B) the air buffer expansion generates the thrust for being applied to the protective shell, to guide the protective shell to instituteThe direction expansion of air buffer expansion is stated, so that the packing case is unfolded to accommodate the article to be packaged, whereinThe air buffer is installed on the inner surface of the body.
Further include a step after step A, the object to be packaged is put into the packing case.
The step A is further included steps of
A.1) inflatable bodies are inflated, so that the inflatable bodies expand；
A.2 the direction expansion for) air buffer being guided to expand to the inflatable bodies；With
A.3 an at least accommodating chamber is formed) for accommodating object to be packaged.
A.1, the step further includes steps of
A.1.1 the gas fill port) is inflated air to by a charge valve；With
A.1.2) distribution air guides air to enter each inflation unit with reality to each inflation unit by the gas fill portNow air is distributed to each inflation unit；
A.1.3 each inflation unit) is unfolded, after air enters the inflation unit, causes each inflation unit to expand, to open upOpen the inflation unit；With
The step B is further included steps of
B.1 side shell wall) is unfolded, the side shell wall is unfolded along the air buffer expansion direction；With
B.2 bottom case wall) is unfolded, the bottom case wall is unfolded along the air buffer expansion direction.
The step B.2 after further comprise a step B.3) show top shell wall, along the air buffer expandTop shell wall is unfolded in direction.
B.1, the step further includes steps of
B.1.1) the sub- side shell wall is rotated to the air buffer expansion direction；With
B.1.2 side shell wall) is unfolded.
It is noted that the material of the protective shell is selected from cloth material, cortical material and paper material.Preferably,The protective shell is papery protective shell.The paper structure of the protective shell includes that single-part stationery or multilayer bring back to life paper.The protective shellIt is papery protective shell.The multilayer composite paper is two layers, three layers, four layers, five layers or more extrusion coating paper.Preferably, described moreLayer extrusion coating paper is three-decker comprising paper and facial tissue and watt rib paper of inside in outside.The multilayer composite paper can alsoThink inner paper, facial tissue and the interlayer between the inner paper and the facial tissue.The inner paper and facial tissue are brown paper, the folderLayer includes a plurality of reinforcing rib extended perpendicularly to each other.
It is worth mentioning that: the air buffer is removably installed in the inner surface of the protective shell.It passes throughThe snap feature connection to match each other.
Above content is enumerating for specific embodiments of the present invention, for the equipment and structure of wherein not detailed description, is answeredWhen being interpreted as that the existing common apparatus in this field and universal method is taken to be practiced.
The above embodiment of the present invention is only to illustrate that technical solution of the present invention is used simultaneously, only the column of technical solution of the present inventionIt lifts, the technical solution and its protection scope being not intended to restrict the invention.Using equivalent technologies mean, equivalent apparatus etc. to this hairThe improvement of technical solution disclosed in bright claims and specification is considered to be without departing from claims of the present inventionAnd range disclosed in specification.